use NULL as sentinel instead of 0

[xonotic/netradiant.git] / radiant / undo.h

diff --git a/radiant/undo.h b/radiant/undo.h
index 1081031dd25ac19e210ca2378a203356751e5043..89e6337d679dd96588254153483aedcc5269d486 100644 (file)
--- a/radiant/undo.h
+++ b/radiant/undo.h
@@ -1,6 +1,6 @@
 /*
-   Copyright (C) 1999-2007 id Software, Inc. and contributors.
-   For a list of contributors, see the accompanying CONTRIBUTORS file.
+   Copyright (C) 2001-2006, William Joseph.
+   All Rights Reserved.
 
    This file is part of GtkRadiant.
 
@@ -19,47 +19,7 @@
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  */
 
-//
-//
-// QERadiant Multilevel Undo/Redo
-//
-//
+#if !defined( INCLUDED_UNDO_H )
+#define INCLUDED_UNDO_H
 
-//start operation
-void Undo_Start( const char *operation );
-//end operation
-void Undo_End( void );
-//add brush to the undo
-void Undo_AddBrush( brush_t *pBrush );
-//add a list with brushes to the undo
-void Undo_AddBrushList( brush_t *brushlist );
-//end a brush after the operation is performed
-void Undo_EndBrush( brush_t *pBrush );
-//end a list with brushes after the operation is performed
-void Undo_EndBrushList( brush_t *brushlist );
-//add entity to undo
-void Undo_AddEntity( entity_t *entity );
-//end an entity after the operation is performed
-void Undo_EndEntity( entity_t *entity );
-//undo last operation (bSilent == true -> will not print the "undone blah blah message")
-void Undo_Undo( boolean bSilent = false );
-//redo last undone operation
-void Undo_Redo( void );
-//get the undo Id of the next undo (0 if none available)
-int Undo_GetUndoId( void );
-//returns true if there is something to be undone available
-int  Undo_UndoAvailable( void );
-//returns true if there is something to redo available
-int  Undo_RedoAvailable( void );
-//clear the undo buffer
-void Undo_Clear( void );
-//set maximum undo size (default 64)
-void Undo_SetMaxSize( int size );
-//get maximum undo size
-int  Undo_GetMaxSize( void );
-//set maximum undo memory in bytes (default 2 MB)
-void Undo_SetMaxMemorySize( int size );
-//get maximum undo memory in bytes
-int  Undo_GetMaxMemorySize( void );
-//returns the amount of memory used by undo
-int  Undo_MemorySize( void );
+#endif